KR102297965B1 - Chip transfer device - Google Patents

Abstract

The present invention is composed of a guide cylinder for guiding the discharge of cutting chips while having a feed screw therein, two guide frames to form a chip separation space between the guide cylinder, and to discharge cutting oil but filter the cutting chips It includes a filtering member, a brush member configured to filter fine cutting chips, and a coolant reservoir in which coolant is stored. When it overflows while filling up, the fine cutting chips are secondarily filtered and discharged from the brush member 400 .

Description

Chip transfer device

The present invention relates to a chip feeding device, and more particularly, by effectively filtering large and small fine chips from the cutting oil while allowing the cutting chips and cutting oil generated and used in cutting processing to be smoothly discharged, a separate sieve or filter facility It relates to a chip transfer device according to a new type that allows the separation of cutting oil and cutting chips to be made efficiently without any problems.

In general, a large amount of cutting chips are generated in cutting in machine tools such as lathes, milling, and machining centers, and cutting oil is used for lubrication and cooling in such cutting.

In this way, the cutting chips generated from the cutting process are discharged by a chip conveying device equipped with a conveying screw or a conveyor, and the used cutting oil flows into the cutting oil.

For such a conventional chip transfer device, as disclosed in Patent Registration No. 10-1604952, Patent Registration No. 10-1485737, and Unexamined Patent Publication No. 10-2017-0129405, the chips generated in the cutting process are affected by the rotational operation of the transfer screw. is collected in a separate chip collection box.

In addition, in the chip transport device according to the prior art described above, the cutting chips included in the cutting oil used in the cutting process are filtered by a sieve or perforated plate, and the cutting oil is discharged into the cutting oil.

The cutting oil collected in the cutting oil is re-supplied and used for smooth processing of the cutting tool and the workpiece through a circulation device.

At this time, in a general structure for separating and discharging cutting oil, large cutting chips are filtered through the sieve or perforated plate, but fine chips are not filtered and discharged together with the cutting oil.

For this reason, when the cutting oil containing fine cutting chips is reused for cutting, scratches are generated on the cutting work by the cutting chips, and this problem can become a fatal problem that makes precision machining difficult.

Therefore, it is necessary to completely separate and discharge the fine cutting chips from the discharged cutting oil through an additional operation that requires separating the fine cutting chips from the discharged cutting oil or through separate equipment.

Of course, in the chip transfer device according to the prior art, efforts are made to minimize the inclusion of cutting chips in the cutting oil discharged to the cutting oil through the various structures of the sieve or perforated plate, but the cutting chips are caught in the sieve or perforated plate. As a result, there is a problem that obstructs the flow, and there is an inconvenience that requires continuous maintenance.

In other words, in the chip transport device according to the prior art described above, the cutting oil filtered through the sieve or the perforated plate is smoothly discharged into the cutting oil, and then the cutting oil and the cutting chips are continuously supplied while the cutting chips are caught in the sieve or the perforated plate. This causes a problem in that the coolant is not smoothly discharged due to the accumulation of chips, which causes the inconvenience of frequently cleaning the cutting chips.

In addition, as disclosed in Patent Registration No. 10-1499479, it is configured so that fine cutting chips do not block the outlet through which the cutting oil is discharged while separating the cutting oil and cutting chips, but the cutting oil falling onto the driven conveyor is There is a problem in that the cutting oil must be filtered once more from the discharged cutting chips by being discharged.

Registered Patent No. 10-1604952 Registered Patent No. 10-1485737 Patent Publication No. 10-2017-0129405 Registered Patent No. 10-1499479

The present invention has been devised to solve various problems according to the above-mentioned prior art, and an object of the present invention is to smoothly discharge the cutting chips and cutting oil generated and used in the cutting process while removing large and small fine cutting chips from the cutting oil. An object of the present invention is to provide a chip transfer device according to a new type that effectively separates cutting oil from cutting chips without a separate sieve or filter facility by effectively filtering it.

According to the chip transport device of the present invention for achieving the above object, the upper portion is made of a semi-circular cylinder with an open guide cylinder for guiding the discharge of the cutting chips while being provided with a conveying screw therein; Provided to be paired with each other, formed in a plate shape to form a chip separation space between the guide cylinder and the guide cylinder, installed to be erected along the longitudinal direction on both sides of the guide cylinder, and the lower end is the inner circumferential surface of the guide cylinder Two guide frames for guiding the cutting chips and cutting oil to flow down with the feed screw inside the guide cylinder while being positioned to have a gap between the shaft; It characterized in that it is configured to include; a coolant storage tank in which the coolant overflowed from the chip separation space is stored while the guide tube body and the guide frame are accommodated.

Here, while being installed to block the gap between the lower end of the guide frame and the inner circumferential surface of the guide cylinder, a filtering member configured to filter the cutting chips from the cutting oil flowing into the chip separation space; characterized in that it is further provided.

In addition, the filter member is characterized in that it is formed in a screw structure in which a spiral mountain and a valley are formed on the outer circumferential surface.

In addition, the upper end of each guide frame is formed to cover the upper end of the guide cylinder, and the upper end of the guide cylinder includes a brush member for filtering fine cutting chips in the cutting oil overflowing from the chip separation space; It is characterized in that it is further installed.

In addition, the lower end of each guide frame is formed to be curved, but the lower end is characterized in that it is formed gradually adjacent to the inner surface of the guide tube body.

As described above, in the chip feeding device of the present invention, the cutting chips contained in the cutting oil generated in the cutting process are primarily filtered by the filtering member and secondarily filtered by the brush member, so that even fine cutting chips are separated and reused. It has the effect that possible cutting oil can be discharged.

In addition, the chip transfer device of the present invention has the effect that the cutting oil naturally fills the chip separation space in the guide cylinder without a separate device or equipment, and the cutting oil naturally overflows from the chip separation space is stored in the coolant storage tank.

In addition, the chip transport device of the present invention has a simple structure, so maintenance is convenient and does not occupy a large volume, and has the effect that the cutting chips accumulated in the guide cylinder and the chip separation space can be easily removed.

In addition, in the chip conveying device of the present invention, the direction of discharging the cutting oil is perpendicular to the conveying direction of the cutting chips due to the structure of the spiral mountains and valleys formed on the outer peripheral surface of the filter member, and only the fluid can be discharged through the gap. Because it is so fine and a spiral is formed, only the coolant can be smoothly discharged even if the chips are introduced into the gap, so that the chips are not discharged or stuck.

1 is an exploded perspective view illustrating a chip transfer device according to an embodiment of the present invention;
Figure 2 is a combined perspective view illustrating a chip transfer device according to an embodiment of the present invention;
3 is an enlarged view of part "A" of FIG.
4 is a cross-sectional view illustrating the internal structure of a chip transfer device according to an embodiment of the present invention;

Hereinafter, a preferred embodiment of the chip transfer device of the present invention will be described with reference to the accompanying FIGS.

1 is an exploded perspective view illustrating a chip transfer device according to an embodiment of the present invention, and FIG. 2 is a combined perspective view illustrating a chip transfer device according to an embodiment of the present invention, as well as FIG. 3 is an enlarged view of part “A” of FIG. 2 , and FIG. 4 is a cross-sectional view illustrating the internal structure of the chip transfer device according to the embodiment of the present invention.

As shown in these drawings, the chip transport apparatus according to the embodiment of the present invention is largely composed of a guide cylinder 100 and two guide frames 200 formed to form a chip separation space 20 between the guide cylinder 100 and the guide cylinder 100 . ), a filter member 300, a brush member 400, and a coolant reservoir 500, and in particular, the cutting oil from which the cutting chips are primarily filtered through the filter member 300 is stored in the chip separation space ( 20), it is characterized in that the cutting chips are secondarily filtered and discharged from the brush member 400 when overflowing.

This will be described in more detail for each configuration as follows.

First, the guide cylinder 100 is a cylinder provided to guide the transfer of the cutting chips.

Such a guide cylinder 100 is formed as a semicircular cylinder with an open upper portion as shown in FIG. 1 and is formed along the feeding direction of the cutting chips, and a conveying screw having a spiral blade formed therein ( 10) is provided. The cutting chips are transferred along the inside of the guide cylinder 100 by the blades of the transfer screw 10 .

At this time, the transfer screw 10 is configured to rotate by receiving the driving force of the driving motor 11 .

That is, the cutting chips inputted from the upper portion of the guide cylinder 100 are discharged through a separate chip outlet (not shown) while being transferred by the transfer screw 10 .

Next, the guide frame 200 is configured to guide the cutting chips and cutting oil to flow down when input into the guide cylinder 100 .

Such a guide frame 200 is made of a plate shape provided to form a pair with each other as shown in the accompanying FIG. 1 or FIG. 4, and is installed to be erected along the longitudinal direction on both sides of the guide frame 100 in the longitudinal direction thereof. Both ends are formed to be inclined upward gradually outward.

Here, the two guide frames 200 are positioned to rest on the inner circumferential surface of the guide cylinder 100 . That is, the lower end of the guide frame 200 and the inner circumferential surface of the guide cylinder 100 are positioned to have a gap between them without being completely in close contact with each other. This is to allow the cutting oil to flow into the chip separation space 20 to be described later through the gap.

In addition, the upper end of each guide frame 200 is formed so as to cover the upper end of the guide tube body (100). That is, since the upper part of each guide frame 200 is formed wider than the open upper part of the guide tube body 100 , the cutting chips and cutting oil injected from the upper side of each guide frame 200 are transferred to the guide tube body 100 . ) can be smoothly slid on the wall of each guide frame 200 toward the inside.

On the other hand, the chip separation space 20 is formed between the guide cylinder body 100 and each guide frame 200 due to the structure of the guide frame 200 as shown in the accompanying FIGS. 3 and 4 , respectively. do.

The chip separation space 20 passes through the gap between the lower end of the guide frame 200 and the inner circumferential surface of the guide tube body 100 in which the cutting oil between the two guide frames 200 in the inside of the guide cylinder 100 passes. It is a space filled with

In addition, as shown in the accompanying Figure 4, the lower end of each guide frame 200 is formed to be curved in a direction facing each other, and the lower end is formed so as to be gradually adjacent toward the inner surface of the guide cylinder body (100).

This is to allow the transfer screw 10 to stably and smoothly rotate between the two guide frames 200 .

That is, the transfer screw 10 provided in the guide cylinder 100 is positioned between the respective guide frames 200 , and the two guide frames 200 face each other according to the rotation of the transfer screw 10 . And, along the inner circumferential surface of the guide cylinder 100 between the two wall surfaces, the cutting chips can be smoothly transported along the longitudinal direction of the guide cylinder 100 .

In other words, if the lower end of each guide frame 200 is installed on the inner circumferential surface of the guide tube body 100 so as not to be curved as described above, the guide tube body 100 and each guide frame 200 are located at the adjacent corners. A space is created so that chips can be accumulated in this space without being transferred.

Next, the filtering member 300 is installed to block the gap between the inner circumferential surface of the guide cylinder 100 and the lower end of each guide frame 200, while allowing the cutting oil to be discharged while filtering the cutting chips. The filter is made up of

The filter member 300 has a rod or bar structure elongated along the longitudinal direction of the guide cylinder 100, and has a screw structure in which helical mountains and valleys are formed on the outer circumferential surface.

That is, since the outer circumferential surface of the filtering member 300 has irregularities formed of mountains and valleys, even if the guide tube body 100 and the guide frame 200 come into contact with the outer circumferential surface of the filtering member 300, the above-described uneven structure occurs. Only the coolant can flow through the gap.

Next, the brush member 400 is a filter configured to filter fine cutting chips in the cutting oil discharged from the chip separation space 20 , and is installed at the upper end of the guide cylinder 100 , respectively.

The brush member 400 has a brush shape composed of a plurality of brushes, and the end thereof is made to abut against the lower surface of the guide frame 200 covering the upper end of the guide cylinder 100 .

That is, the brush member 400 is installed to block between the upper end of the guide cylinder 100 and the lower surface of the guide frame 200 .

For this reason, when the cutting oil filled in the chip separation space 20 is discharged through the brush member 400 , the fine cutting chips that have not yet been filtered by the filter member 300 are caught in the brush member 400 . and only the coolant is discharged.

The brush member 400 may be made of various types of brushes, such as synthetic resin, and may be formed to be long as long as it can block the gap between the upper end of the guide tube body 100 and the guide frame 200 .

Next, the coolant storage tank 500 is configured to store the coolant discharged through each of the chip separation spaces 20 .

The coolant storage tank 500 is formed as a cylinder with an open upper surface, and while the guide cylinder 100 is accommodated therein, the inclined ends of each guide frame 200 are placed on the upper surfaces of both sides. .

In addition, the coolant reservoir 500 may provide the cutting oil stored in the coolant reservoir 500 to another cutting fluid through a separate outlet (not shown) depending on the working environment.

On the other hand, a plurality of support frames 600 for supporting the guide tube body 100 and the two guide frames 200 are installed inside the coolant reservoir 500 .

The support frame 600 is made of a flat plate, and is installed in a standing state while being spaced apart from each other in the longitudinal direction in the coolant reservoir 500 .

On the other hand, the upper surface of the support frame 600 corresponds to the outer circumferential surface of the guide cylinder 100 and the inclined upper ends of the two guide frames 200 extending to both sides of the upper end of the guide cylinder 100 to be seated. a urinary indentation is formed. This is as shown in the accompanying FIGS. 1 and 4 .

In addition, the width of the support frame 600 is preferably formed shorter than the width of both sides of the coolant reservoir (500). This is to allow the coolant stored in the coolant storage tank 500 to flow smoothly to both sides of the support frame 600 .

In addition, as shown in FIG. 4 , a coolant flow groove 610 is concavely formed on the bottom surface of the support frame 600 to allow coolant to pass through, or a plurality of coolant flow holes are formed in the support frame 600 . As the 620 is formed through, even if a plurality of support frames 600 are erected in the coolant reservoir 500, the coolant passes through the flow groove 610 and the flow hole 620 while the coolant reservoir 500 is installed. ) can flow smoothly within the

Hereinafter, the manufacturing process of the chip transfer device according to the embodiment of the present invention described above will be described in more detail.

First, a guide body 100, a pair of guide frames 200, two filtering members 300, a coolant reservoir 500, and a plurality of support frames 600 are prepared, respectively.

In addition, the two filtering members 300 are fixedly installed on the inner circumferential surface of the guide frame 200 prepared as described above while spaced apart from each other.

In this case, the guide frame 200 and the filter member 300 are coupled to each other through welding, and in particular, it is preferable that partial welding is performed in the longitudinal direction of the filter member 300 . This is because, when the filter member 300 is welded to the inner circumferential surface of the guide cylinder 100 without gaps, the cutting oil cannot pass through the concave-convex gap formed on the outer circumferential surface of the filter member 300 .

Thereafter, the lower ends of each guide frame 200 are placed in contact with the upper portions of the respective filtering members 300 , and the upper end of the guide frame 200 is placed on the upper end of the guide cylinder body 100 . place it

At this time, the brush members 400 installed at both upper ends of the guide cylinder 100 come into contact with the lower surface of each guide frame 200 described above.

In addition, the lower end of the guide frame 200 is partially welded to the filtering member 300 as the filter member 300 and the guide cylinder 100 described above are partially welded.

Accordingly, each guide frame 200 is coupled to each other with the guide cylinder 100 with each filtering member 300 interposed therebetween.

Accordingly, the guide cylinder 100 and each of the filtering member 300 and the guide frame 200 form a single structure.

And, each support frame 600 is partially coupled to the lower end of the monolithic structure as described above.

That is, the outer peripheral surface of the guide cylinder 100 and the inclined both sides of the guide frame 200 are placed on the upper surface in a state in which the plurality of support frames 600 are erected.

In this case, each of the support frames 600 are arranged to be spaced apart from each other while having a uniform distance from each other along the longitudinal direction of the guide cylinder 100 .

Thereafter, the structure to which each support frame 600 is coupled is seated in the coolant reservoir 500 .

Then, a transfer screw 10 is installed between each guide frame 200 positioned in the guide cylinder 100 , and a driving motor 11 is connected to the transfer screw 10 to manufacture a chip transfer device. .

On the other hand, in another embodiment of the chip transport device according to the present invention, the filter member 300 may be omitted from the above-described single-piece structure.

When the filtering member 300 is omitted, the lower end of each guide frame 200 is installed in direct contact with the inner circumferential surface of the guide cylinder 100, and a portion in contact with it is partially welded.

In this structure, no matter how precisely the lower end face of the guide frame 200 and the inner circumferential surface of the guide tube body 100 are processed, a gap may occur in the abutting portion, so even without the filtering member 300, such Cutting oil can pass through the gap.

Next, a process in which the cutting oil and the cutting chips are separated and discharged by the chip transfer device according to the embodiment of the present invention will be described in more detail.

First, the chip transfer device is operated while the transfer screw 10 is rotated by the operation of the driving motor 11 .

In this state, the cutting chips and cutting oil generated by the cutting process are guided by the guide frame 200 while falling to the chip transfer device located at the bottom thereof and introduced into the guide cylinder 100 .

Then, the cutting chips introduced into the guide cylinder 100 are gradually transferred in the axial direction by the rotation of the transfer screw 10 .

On the other hand, the cutting oil introduced into the guide cylinder 100 gradually fills up from the bottom in the guide cylinder 100 , and some flows into the chip separation space 20 through the filter member 300 .

At this time, the cutting chips included in the cutting oil are caught by the filtering member 300, and the cutting oil filtered by the cutting chips flows into the chip separation space 20 along the minute gaps formed on the outer peripheral surface of the filtering member 300. do.

In particular, the direction of discharging the cutting oil is formed in a direction perpendicular to the conveying direction of the cutting chips due to the structure of the spiral mountains and valleys formed on the outer peripheral surface of the filter member 300, and the gap is so large that only the fluid can be discharged. Since it forms a fine spiral, only the cutting oil is smoothly discharged into the chip separation space 20 even if the cutting chips are introduced into the corresponding gap.

Thereafter, as the cutting oil is continuously filled in the guide cylinder 100 , the cutting oil is gradually filled into the chip separation space 20 as described above.

Then, when the cutting oil is filled in the chip separation space 20 , the cutting oil passes through the brush member 400 when it overflows from the chip separation space 20 and is stored in the cutting oil reservoir 500 .

On the other hand, in the cutting oil filled in the chip separation space 20 , fine cutting chips cannot be filtered out of the filter member 300 through a gap formed on the outer peripheral surface of the filter member 300 , and may be moved together.

When the cutting oil passes through the brush member 400 , fine cutting chips are caught between the brush members 400 , and only the cutting oil from which the cutting chips are completely separated is stored in the coolant reservoir 500 . be able to

On the other hand, the coolant stored in the coolant reservoir 500 flows smoothly in the coolant reservoir 500 through the spaces on both sides of each support frame 600 , the coolant flow groove 610 and the coolant flow hole 620 , and , is discharged to an outlet (illustration is omitted) as necessary for reuse and the like.

As a result, in the chip transfer device of the present invention, the cutting chips contained in the cutting oil generated in the cutting process are primarily filtered by the filter member 300 and secondarily filtered by the brush member 400, so that even fine cutting chips The separated and reusable coolant can be discharged.

In addition, in the chip transfer device of the present invention, the cutting oil naturally fills the chip separation space 20 in the guide cylinder 100 without a separate device or facility, and the cutting oil naturally overflows from the chip separation space 20 is It is possible to be stored in the cutting oil storage tank (500).

In addition, the chip transport device of the present invention has a simple structure, so maintenance is convenient and does not occupy a large volume. 20), the chips accumulated in the chip separation space 20 and the chips accumulated in the guide cylinder 100 can be easily removed.

The scope of the present invention is not limited to the embodiments illustrated above, and many other modifications based on the present invention will be possible for those skilled in the art within the above technical scope.

10. Transfer screw
11. Drive motor
20. Separation space
100. Information tube
200. Guide frame
300. Fertilizer
400. Brush member
500. Coolant Reservoir
600. Support frame
610. Coolant flow groove
620. Coolant flow hole

Claims (5)

a guide cylinder 100 made of a semi-circular cylinder with an open upper portion and provided with a feed screw 10 therein to guide the discharge of cutting chips;
Provided to be paired with each other, formed in a plate shape to form a chip separation space 20 between the guide cylinder 100 and installed to be erected along the longitudinal direction on both sides of the guide cylinder 100, The lower end is positioned to have a gap between the inner circumferential surface of the guide cylinder 100 and two guide frames 200 for guiding the cutting chips and cutting oil to flow down to the feed screw 10 inside the guide cylinder 100 . )class;
a coolant reservoir 500 in which the coolant overflowing from the chip separation space 20 is stored while the guide barrel 100 and the guide frame 200 are accommodated;
The filter member 300 is installed to block the gap between the lower end of the guide frame 200 and the inner circumferential surface of the guide cylinder 100, and to filter the cutting chips from the cutting oil flowing into the chip separation space 20. has a configuration comprising;
The filter member 300 is a chip transport device, characterized in that formed in a screw structure in which a spiral mountain and a valley are formed on an outer circumferential surface. delete delete The method of claim 1,
The upper end of each guide frame 200 is formed to cover the upper end of the guide cylinder 100, respectively,
The upper end of the guide cylinder (100) is provided with a brush member (400) that filters fine cutting chips in the coolant overflowing while filling up from the chip separation space (20). The method of claim 1,
The lower end of each guide frame (200) is formed to be curved, but the lower end is formed to be gradually adjacent to the inner surface of the guide cylinder (100).

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